发明名称 |
Security hologram, method of recording same, and method of using same |
摘要 |
<p>A security hologram is disclosed that is invisible to a human eye or to various optical detectors until the hologram is optically coupled to a suitable modifier (e.g., a prism). Also disclosed is a method of recording the security hologram and a method of using the hologram in security applications to establish authenticity of article(s).</p> |
申请公布号 |
EP1892587(A2) |
申请公布日期 |
2008.02.27 |
申请号 |
EP20070016376 |
申请日期 |
2007.08.21 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
MACMASTER, STEVEN WILLIAM |
分类号 |
G03H1/00;G03H1/04 |
主分类号 |
G03H1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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